I called some places and they wanted £20-£25 per corner to change tyres over although I could buy cheep new tyres £42 each fully fitted. One of the tyres places started going into some unhinged rant cursing about ******* buying tyres online etc and I had to hang up the phone and another place got arsey also. I did not want new tyres fitted I was asking about swapping my current tyres onto a set of OEM alloys I could've of bought as I was having a hard time sourcing a steel wheel for my car as it was slowly leaking air though of course this tyre place the diagnosed the steel wheel said my front tyres where old/worn but I kept quiet about the MOT the car had a couple of weeks ago.
I guess its to stop people buying tyres cheep online and getting them fitted cheeper at a tyre place rather then them selling you the tyres and fitting, funny how it took them 5 mins to diagnose the air leak on the steel wheel but the want £80+ to change 4 tyres over.